Improvement in processes of manufacturing nailed boots and shoes



-L; R. BLAKE. I raocns's 0F MANUFACTURING.NAILED BOOTS AND SHOES. No.189,834. A Patented1Apr'11Z4,1 877.

NJ'EIERS. PubruumosmPHza, WASHINGTON, n C,

'ment in Process of FFICE.

LYMAN R. BLAKE, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN PROCESSES OF MANUFACTURING NAILED BOOTS AND SHOES.

Specification forming part of Letters Patent No. IS9 S34,

December 27, 1876.

To all whom it may concern:

Be it known that I, LYMAN R. BLAKE, of Boston, in the county of Suffolkand State of Massachusetts, have invented an Improve- ManufacturingNailed Boots and Shoes, of which the following is a specification In themanufacture of boots and shoes by nailing, as now commonly practiced,the shoeupper is placed upon a last with an inner sol and the outer soleis applied and held to it by two or more lasting-tacks. If the shoe isto be nailed by hand, the outer sole is pounded, beaten out, or moldedto the lasted shoe, holes are made in the sole by an awl, and the nailsare then driven singly into such holes, and the upper and inner sole.Each nail is completely driven separately. If nailed by machine, theshoe, With its outer sole applied and held by lasting-tacks, is taken toa nailingmachine, where each nail is separately completely driventhrough the outer sole, upper and inner sole, at a single blow of thenaildriver, the head or upper end of the nail being driven flush withthe face of the outer sole or below it. The first process is slow andexpensiy e, and the second requires askilled workman to manipulate themachine, and other than hand or foot power to run it.

The process herein described may be practiced more economically and tobetter advantage than either of these usual processes.

In this invention an outer sole is suitably molded, in order that itssurface may conform to the shape of the lasted shoe to which it is to besubsequently applied. Then such sole is set or studded with headedtacks, nails, or metallic fastenings, each tack being driven into thesole substantially at right angles with it at the point of d tacks willbe driven substantially flush with the inner side of the. outer sole.Preferably they will not extend through the sole, but they may extend alittle below, or stop a little above the inner face of the outer sole.The heads of the tacks or nails as left by the driver will project abovethe outer face of the outer sole a distance sufiicient to permit thetack ornail, when subsequently driven, to extend from the inner side ofthe outer sole through the upper and inner sole, and far riving. Thepoints of the dated April 24, 1877 application filed 'to the size of thetack, will fit th heel correspondi enough to clinch upon an iron oriron-plated last. The tacks or .nails will preferably be made to tapermore or less, and the awl to make holes for their reception will be madeof a corresponding taper, or a little smaller than the nail-body, sothat the tacks or nails driven into holes so proportioned with referencee hole throughout the thickness of the sole the same as if the tack wasitself driven directly into the sole. Tacks or nails so driven will bewedged into such holes with sufficient firmness to remain there when thesole is subsequently handled. In ordinary work the hole for the nail islarger than the nail-body, and is'much larger than the nail, except ator near its head,

and consequently the sides of the nail do not effectually held againstthe sole throughout its length.

This sole so set or studded with partiallydriven tacks or nails, is thenplaced in position upon a lasted boot or shoe, consisting of an upperand inner sole secured to the last, and the tacks or nails are thendriven, preferably several at a time, by means of a broadfaced hammer ortool, down through the outer v sole and into the upper and inner sole.

By molding the sole before driving the tacks or nails therein, asdescribed, the nails, when subsequently driven, will all point in adirection toward the center of the last, or in other words, the heads ofopposite nails on opposite margins of the shoe will be farther apartthan the points of such nails.

It is possible, however, to practice this invention by molding the soleafter the nails are driven, but such plan would not be as well as tomold it before the tacks or nails are driven. In this invention thetacks or nails pass through the outer sole andinto the upper and innersole at an inward inclination more or less in degree, and thetack-points cannot enter or cut the upper above the inner sole.

Heels have been loaded with nails to be subsequently driven therethroughto attach them to shoes. Such nails partially driven into heel-blankshave been made to incline outward, never inward, and the top lift of themg with the outer surface of the sole, has never been rounded or curvedto necessary 1n this invention the last, as is wherein a sole is to beapplied. The tacks or nails may be partially driven into the sole by themachine described in my application filed in the United States PatentOffice May 5, 1876, or by means of any of the machines subsequentlyfiled and designed for this purpose.

I do not claim the process set forth by Gordon McKay for nailing shoes,and claimed in his application filed December -11, 1876.

In the drawing, Figure 1 represents a sole supplied withpartially-driven tacks, according to my invention. Fig. 2 represents thesole applied to a lasted shoe, and Fig. 3 represents a shoe and sole incross-section, part of the nails at one side being completely driven.

The last a has applied to it an inner sole, 1), about which is placedthe upper c. The outer sole (1, molded and supplied with partiallydriventacks or nails, is then placed upon the lasted shoe, and the tacks ornails are then driven, entering the upper and inner sole substantiallyin the direction indicated in Fig. 3.

The last maybe of metal or metal plated, as usual. The tacks or metallicfastenings may be oi any usual shape.

I claim- The improved method or process herein described of uniting thesoles and uppers of boots and shoes with metallic fastenings, consistingin supplying the outer sole with partially-driven fastenings, thenapplying the sole (molded to the shape of the lasted shoe, and sostudded with metallic fastenings) to the lasted shoe, and driving thesaid fastenings held in the outer sole down through the outer sole,upper, and inner sole, all substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

LYMAN It. BLAKE.

Witnesses:

G. W. GREGORY,

S. B. KIDDER.

